I Bought a $68 BROKEN Milwaukee Sawzall from Goodwill- Let's Fix It!

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$68 BROKEN Milwaukee Sawzall - Let's Fix It! The first issue was that the battery wouldn't charge so that had to be fixed first. I also take the sawzall apart to see how the inside looks and if I notice any issues.

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Ive fixed so many batteries by saving them with another charged battery and never had issues long term. This happens a lot in cold environment from my experience as a construction worker.
Such a simple and easy fix

TheArbitraryActivist

A cheap bench top power supply is great for rescuing dead batteries because you can set a 200 mA current limit keep the wires cool, and bring the packs up gently before moving it to a real battery charger to finish. Still needs supervision in case the batteries go boom but a lot safer.

greatestbear

My knowledge about electronics is quite limited, but seeing Steve fix anything and everything is super interesting

kris_lawson

Great to see you looking so well, Steve. Long may that continue! ❤

ches

Perfect use case for a bench power supply.

proesterchen

My guess is someone bought this used it once then stored it for so long that the battery died and it rusted a bit

MrMacdaddymcfly

For rust.. you should buy some Evapo-Rust. It lasts a LONG time (can rehydrate it with water) and will even clean metals that don't have rust. It's less destructive than just sanding.

frijoles

The last video you did fixing power tools my neighbor asked me to look at his tools. I was able to fix several of his battery packs and later some of his Milwaukee tools. I bought a 18650 charger and you can set it up with leaders to charge the batteries without breaking the pack

thadofalltrades

I love your computer and gaming repairs. I think they’re very straightforward and insightful, I would love to see a series on power tool repair. that seems to be fascinating especially from the both mechanical and the electronics part. Keep up the good work, sir love it.

denhouse

If I remember correctly, Milwaukee battery management system doesn't actually balance the pack. Since they were drained so low, I'd recommend opening it up and charge each cell individually to full. When the individual cells get that low, their voltage will vary a lot, and charging them full on factory charger just means one of the cell hit 4.2V and the charger stops. So you're not getting the full capacity from a full pack, and when it discharges, the lowest cell will hit that cut off much sooner. That's my understanding based on internet dissection videos.

rcboosted

1st time back in awhile vid was finally recommended good to see you are looking better bro 👍

ashinigamirises

Long time without watching these vids and im really happy you doing well Steve! even the hair seems very healthy as heck. Also another 15 min watched like its nothing, amazing content as always.

MartinFZelada

Thank-you, Steve, for this change of pace. It's great when you mix things up a bit.

williamharris

Good job! Personally I'd use a bench power supply so you can set it at 18v and a low mA current to try resurrections. If you do more tools with semi-failed battery packs it is fun to invest in a cheap battery tab spot welder and change out the individual cells that won't keep a charge for replacement ones as it's usually only one or two that give up. You can often make 2 decent packs from 3 failed ones. Love the random item videos as a change from your usual stuff. Keep up the great work!

MikeB_UK

i had a 12.0Ah milwaukee battery that came with my cordless tablesaw. i liked using the saw, and the battery would allow me to work on my DIY stuff for a while.
i didn't use the battery and saw for a few months and were just in a shed. just A WEEK AFTER the warranty expired, the battery stopped holding a charge. i would fully charge it, cut 1 piece of wood, and it's blinking (very low charge). when i put in the charger, it would take 10 minutes to show fully charged. i searched around and found out it was probably the cells that got out of charge synchronization from the BMS. i had to learn the hard way how to fix it but it was back to business after that!

aaronalquiza